From 5eeb355805e0d5d91981dbe7eacb078f41da0437 Mon Sep 17 00:00:00 2001
From: Felix Perktold <Felix.Perktold@student.uibk.ac.at>
Date: Sat, 20 Dec 2025 21:59:28 +0100
Subject: init commit

---
 lisp.h | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 lisp.h

(limited to 'lisp.h')

diff --git a/lisp.h b/lisp.h
new file mode 100644
index 0000000..535bc50
--- /dev/null
+++ b/lisp.h
@@ -0,0 +1,37 @@
+#ifndef LISP_H
+#define LISP_H
+
+typedef enum {
+	VALTYPE_INT,
+	VALTYPE_DOUBLE,
+	VALTYPE_SYMBOL,
+	VALTYPE_STRING,
+	VALTYPE_NIL,
+	VALTYPE_PAIR
+} val_type;
+
+typedef struct value value;
+struct value {
+	val_type type;
+	union {
+		int i;
+		double d;
+		const char *sym;
+		const char *str;
+		struct {
+			value *car;
+			value *cdr;
+		} pair;
+	} as;
+};
+
+value *make_int(int i);
+value *make_double(double d);
+value *make_symbol(const char *sym);
+value *make_string(const char *str);
+value *make_nil();
+value *cons(value *car, value *cdr);
+
+void *print_val(value *val);
+
+#endif
-- 
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